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Alternatives · DevOps infrastructure

Activepieces alternatives (2026)

Activepieces: A strong self-hosted automation tool with good AI-agent support.

Its Catch: The LICENSE file is MIT except packages/ee, which is under a commercial license, so this is open-core and some enterprise features need a paid plan.

Below: 7 free or free-tier tools from the same category (infrastructure tools), free and open source first, then the closest match by shared tags. Each keeps its own Catch.

  1. 1.ByteStashGPL-3.0 self-hosted code snippet manager with MCP

    Free / OSS · GPL-3.0 · 2.6k GitHub stars

    VerdictA tidy home for your snippets that your agent can search as well.

    CatchSmall project with a single main maintainer, so expect a narrower feature set than a full wiki. The MCP endpoint gives an assistant write access to your snippets, so scope the API key. GPL-3.0 if you redistribute modified versions.

  2. 2.lldapGPL-3.0 light LDAP server for simple user management

    Free / OSS · GPL-3.0 · 6.6k GitHub stars

    VerdictThe easiest LDAP backend for a self-hosted stack.

    CatchIt is deliberately not a full LDAP server: schema and features are limited, so some enterprise apps will not work. Still 0.x. Pair it with an SSO layer like Authelia for modern login flows.

  3. 3.AuthorizerApache-2.0 self-hosted auth server on your own database

    Free / OSS · Apache-2.0 · 2.1k GitHub stars

    VerdictA lightweight Auth0 alternative when you want users in your own database.

    Catchv2 moved all configuration to CLI arguments and ignores .env files, which breaks older deployment recipes — read the migration guide. Much smaller community than Keycloak, Zitadel or Authentik. You own security updates.

  4. 4.AuthgearApache-2.0 open alternative to Auth0 and Clerk

    Free / OSS · Apache-2.0 · 2.1k GitHub stars

    VerdictA polished consumer-auth stack you can self-host — compare it with Zitadel first.

    CatchSelf-hosting is a multi-service setup (Go servers, Postgres, Redis and more), and docs lean toward Authgear Cloud. Smaller community than Keycloak or Zitadel. SMS and WhatsApp OTP need your own provider and its costs.

  5. 5.mitmproxyMIT interactive TLS-capable intercepting HTTP proxy

    Free / OSS · OSS/MIT · 45.7k GitHub stars

    VerdictThe standard open-source tool for seeing exactly what an app sends.

    CatchYou have to install and trust its CA certificate on the device, and apps that pin certificates won't work without extra steps. The last release was in May, though commits continue. Use it only on traffic you are allowed to inspect.

  6. 6.YaakMIT desktop API client for REST, GraphQL and gRPC

    Free / OSS · OSS/MIT · 19.3k GitHub stars

    VerdictA great free personal API client; budget a license for work use.

    CatchThe app is free for personal use, but the pricing page says you need a paid license to use it at work (from $79/year per person). A younger ecosystem than Postman, with fewer team features.

  7. 7.ArtilleryMPL-2.0 load testing for HTTP, WebSockets and browsers

    Free / OSS · MPL-2.0 · 9.1k GitHub stars

    VerdictA solid OSS load tester, especially for Playwright-based browser tests.

    CatchThe hosted Artillery Cloud dashboard is a separate paid product; the CLI is the free part. Running at scale bills your own AWS account. k6 is the main alternative if you prefer scripting in JavaScript only.

FAQ

What are the best free alternatives to Activepieces?
ByteStash, lldap, Authorizer, Authgear, mitmproxy. All are reviewed on Stack Gems in the same category (infrastructure tools); 7 free or open source.
What is the catch with Activepieces?
The LICENSE file is MIT except packages/ee, which is under a commercial license, so this is open-core and some enterprise features need a paid plan.
Is there an open-source alternative to Activepieces?
Yes: ByteStash (GPL-3.0), lldap (GPL-3.0), Authorizer (Apache-2.0), Authgear (Apache-2.0).

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